Press



March 19, 1929,

H. F. VICKI-:Rs 1,706,088

PRESS Filed F'eb= 9, 1927 Patented 3Q,

HARRY El. VGERS, @El LGS. ANGELES, CALFORNIA, SSGNOTJ T0 VICKERS EEANU=EAGTUNG- COMPANY, @F 'LOS NGELES, CALEE'ORNEA, CRQQRTEON 0F FORM.

RFSS.

.application filedtebruary 9, 1927. Serial No. l.

This invention has to do with a press, :and has particular reference toa hydraulic press.

An object of my present invention is to provide a simple, practical andedective hydrau- -lic press, suitable for use in garages, machine shopsand other like places.

1t is another object of this invention to provide a hydraulic presswhich can be easily and conveniently adjusted to accommodate work lo ofvarious sizes.

A. further object of my present invention is to provide a simple,edective and inexpensive form and arrangement of parts for a hydraulicpress.

rlhe various objects and features of my present invention will be bestand more fully understood from the following detailed description of a.typical form of the invention throughout which description reference ishad to the accompanying drawings, in which:

Fig. 1 isa front elevation of the press with certain parts broken away;

Fig. 2 is a side elevation of the press;

Fig. 3 is an enlarged detailed sectional view taken substantially asindicated by line 3-3 on Fig. 2;

Fig'. 4 is a sectional view taken as indicated by line 4-4 on Fig. 3;and

Fig. 5 is a sectional view taken as indicated by line 5 5 on Fig. 1.

The press provided by my present invention includes, generally, a frame10, a work carrier 11, supported by the frame, a cylinder 12 mounted onthe frame, a piston 13 operable in the cylinder, a ush rod or stem 14attached to the piston, a uid reservoir 15, a valve controlledconnection 17 between the reservoir and cylinder, pump means 18 forreceiving fluid from the reservoir and pumping it into the cylinder,operating means 19 for the pump, and means 40 for manually operating thepush rod 14.

The frame l0 may be constructed in various manners to suit variousoperating conditions, it being preferred to form it generally of twovertical ends 2O and head or top beams 21, which extend between theupper ends of the ends 20. The ends 20 ofthe frame may be formedofchannel irons of suitable size, and,

in practice, it is desirable to connect the lower parts of th ends bysuitable brace beams 22. urther, seat or base parts 23 may be providedat the lower ends of the ends y20 to form effective supports for theapparatus. The

20. 1n the preferred construction, the work carrier includes two beams25 arranged at the front and rear sides of the ends 2O to be supportedon pins 24 arranged through openings 25a provided in the flanges of theend beams 20. The beams 25 are connectedtogether adjacent their ends bymeans of bolts 26 and are spaced apart to properly fit the ends 2O bymeans of spacing sleeves 27 carried on the bolts A26, as clearly shownin Fig. 5 of the drawings. 1n accordance with my invention, I provideseveral sets of openings 25EL in the flanges of the ends 20, and l spaceone of the bolts 26 at each end of the carrier 11 inward from the endsof the beams 25 so that the carrier can be tilted to position, such asis indicated in dotted lines in Fig. 2, in moving it from one positionto another on the ends 20. To vary or change the position of the workcarrier, the pins 24 are arranged in different sets or holes 25a, itbeing preferred in practice to adjust one end of the carrier at a time,as indicated by dotted lines in Fig. 1, as

such operation can be easily performed by one man without danger oflosing control of the carrier and without undue effort.

The cylinder 12 is mounted in an upright or vertical position betweenthe top beams 21 of the frame. The cylinder casting may be provided atopposite sides with fiat faces 30 to engage the beams 21, and, inaccordance with my invention, I provide lugs or projection 31 on thesides of the cylinder to engage under the beams 21 in the manner shownin Fig. 4 of the drawings. The cylinder may be secured in positionbetween the beams 21 by means of cap screws 32 arranged through thebeams 21 and into suitable tapped holes provided in the faces 31. Thecylinder is closed at its upper end by an inte ral head 34 and at itslower end by a remova le head 35.

The piston 13 is slidably mounted in the cylinder and includes a body36, a packing member 37 and a retaining nut 38, which holds the packingmember in position withy reference to the body. The parts of the pistonare assembled on a lscrew threaded stud or projection 39, provided onthe end of the push rod 14. The packing member 37 may be a 41 carried bythe hea-d 35 at the lower end of the cylinder, a pinion 42 on the shaftto mesh with teeth 43 formed on one side of the push rod, and anoperating handle 44, provided on the shaft 41 at the exterior of thehead. The teeth 43', provided on the push rod, form a rack with whichthe pinion 42 meshes so thabrotation of the pinion through yoperation ofthe handle 44 causes vertical movement of the push rod.

ln accordance with the arrangement provided by my invention, the fluidreservoir 15 is formed above or at the top of the cylinder 12. ln thepreferred construction, the side wall of the reservoir is integral withthe cylinder 12 and continues or projects upwardly from the cylinder sothat the top head 34 of the cylinder forms a bottom for the reservoir.In practice, l provide a suitable cover or closure 45 for the top of thereservoir.

The connection 17 between the reservoir and the upper end of thecylinder preferably includes a port 46 and a valve 47 for controllingflow of Huid through the port. A suitable enlargement of projection 48is provided on one side of the structure formed by the cylinder andreservoir at the point of connection between the cylinder and reservoir.The port 46 extends through the projection 48 and has one end incommunication with the lower part of the reservoir and the other end incommunication with the upper end of the cylinder. The valve 47 isrotatably carried in an opening 49 formed transversely through theprojection 48 to intersect the port 46. The valve has an opening 50through it, adapted to be moved into and out of register with the port'to open and close theconnection between the reservoir and cylinder.When the opening 50 in the valve is out of register with the port 46, asshown in Fig.

' 3, the connection between the reservoir and cylinder is closed. Thevalve has a stem 51 extending from the projection 48 and, in practice',the stem is handle 52.

The pump means 18, provided for pumping iuid from the reservoir into theupper end of the cylinder 12, may include a cylinder formed or providedon one side of the unit formed by the cylinder 12 and reservoir 15,

provided with an operating 'Vit plunger 71 operable in the cylinder 70,a

voir with the upper end of the cylinder 70, and a valve controlled port73.7 connecting the upper end of the cylinder 12 with the upper end ofthe cylinder 70. The cylinder 70 is preferably formed or cast integralwith the reservoir 15 and cylinder 12 and is formed so that its axis isparallel with that of the cylinder 12. The plunger 7l freely fits thecylinder 7 0 and projects from the lower end of the cylinder through asuitable packing gland 74. The port 72 connects the lower end of thereservoir 15 with the upper end of the cylinder 70 and has a. checkvalve 76 in it to admit fluid from the reservoir to the cylinder. Theport 73 connects the upper end of the cylinder 70 with the upper end ofthe cylinder 12, and has a check valve 7 3a in it to admit Huid from thecylinder 70 to the cylinder 12. The plunger is adapted to bereciprocated in the cylinder so that Huid is drawn into the cylinder 70past valve 76 and is then forced out of the cylinder 70 past the valve73E* and into the cylinder 12. It will be noted from inspection ofthedrawings, that the ports 72 and 7 3 are formed in or through the castingor` body of the parts above described, making it unnnecessary to providespecial pipes or fittings to make these connections.

The operating means 19, provided for actuating the ump, preferablyincludes an operating sha t 80 carried by the frame l0, an operatinglever 81\onv the shaft, and a connection between the shaft and theplunger whereby rotation or operation of the shaft causes reciprocationof the plunger. The

shaft 80, in accordance with my preferred arrangement, is locatedbetween the top beams 21 of the frame and has one end carried in abearing 84 formed on. the side of the cylinder 12 and has its other endprojecting through one of the end beams 20. The operating Ilever 81 isfixed onthe outer or projecting end of the shaft 80, in the mannerclearly shown in Fig. 1 of the drawings. The operating connectionbetween the shaft 80 and plunger'71 preferably includes a crank arm-90xed on the shaft 80, and a connecting rod 91 connecting the crank armand plunger. In' the arrangement shown in the drawing, a pin 92pivotally connects one end lof the connecting rod with the crank arm 90,

cal advantage over the plunger 71, particuve controlled port 72connecting the reserfluid Will be pumped into the cylinderv12 at' a veryhigh pressure. A very noteworthy feature of my invention is .the unitaryconstruction formed by the cylinder 12,reservoir 15, valve cont-rolledconnection 17 between the reservoir` 15, and the pump 18.' The mainportion of these parts beingin the form of a single casting, the deviceis made Very simple and compact. Further, this particular arrangementand formation of parts makes the device very simple and inexpensive tomanufacture and assemble, and makes it simple and dependable inoperation. V

L Having described only a typical preferred form of my invention, I donot Wish to limit myself 'to the specific details set forth, but W1sh toreserve to myself any changes or variations that may appear to thoseskilled in the art or fall within the scope of the following claim.

Having described my invention, 1 claim:

A press,`including a frame having ends and a top extending between theends, and a unitary structure carried by the top including a cylinder,apiston in the cylinder, a push rod connected with the piston andprojecting downwardly from the cylinder, means for manually operatingthe piston, including a pinion meshing with teeth on the rod and .ahandle for operating the pinion, a

-Huid reservoir formed integral with the cylindei` above the cylinder, avalve controlled fluid connection between the reservoir and cylinder,and a pump for pumping fluid from the reservoir into the cylinderincluding a pump cylinder, formed integral with said cylinder, a plungerextending into the pump cylinder, a valve controlled connection foradmitting iuid from the reservoir into the head end of the pump clinder, and a valve controlled connection or conducting fluid from saidend of the pump cylinder to the upper end of the first mentionedcylinder.

1n witness that I claim the foregoin I have hereunto subscribed my namethis th day of December, 1926.

s HARRY F. VlCKERS.

